Prospective, single center, clinical study of SRT2379 administered orally. Randomized, placebo-controlled, single-blind, multiple-dose, dose-escalation inpatient/outpatient study to assess the safety and pharmacokinetics (PK) of SRT2379 in healthy male volunteers. Approximately sixty-four (64) subjects aged 18-55, who fulfill the inclusion/exclusion criteria, will be enrolled in this study. Eight cohorts of eight subjects each will be examined. Subjects within each cohort will be randomized 6:2 to receive SRT2379 at one of seven escalating doses (A, B, C, D, E, F or G), likely to be 25, 75, 250, 500, 1000, 2000, and 3000 mg/day or placebo. All cohorts will be administered SRT2379 in the fasted state, with the exception of one cohort that will receive one of the stated doses of SRT2379 in the fed state (the dose of SRT2379 administered to subjects in the fed state is planned to be 500 mg, however this may be modified upwards or downwards following evaluation of safety and pharmacokinetic data from earlier cohorts. The fed cohort will be the final cohort dosed in the study.). Two subjects will be dosed on Day 1 of the single dose period with one subject receiving active treatment and one subject receiving placebo. The remainder of subjects within each cohort will be dosed on Day 2 of the single dose period with five subjects receiving active treatment and one subject receiving placebo, assuming that no safety issues arise in the two subjects dosed on Day 1. Subjects will remain on a fixed dose of test material for all dosing days in the study.